Buffer-beam.



o. T. WESTIQAKE.

BUFFER BEAM. APPLICATION FILED JULY 31,1911.

Patented Apr. 30, 1912.

UNITED sTATEs PATENT OFFICE;i

CHARLES T. WES'ILAKE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO DAVIS LOCOMOTIVE WHEEL COMPANY,.OF ST..LOUIS, MISSOURI, A CORPORATION E DELAWARE.

BUFFER-BEAM. A

Specification of Letters Patent.'

Patented Apr. 3o, 1912.

Application filed J u1yi31,. 19411. Serial No. 641,646. g

` ing at St. Louis, Missouri, have invented a Ational view on line 3 3, Fig. l.

certain new and useful Improvement in Buffer-Beams, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, forming part of this specication, in which- Figure 1 is a top plan view of my improved bufer beam. Fig. 2 is a front elevational view of the same. Fig. 3 is a sec- Fig. 4 is an end elevational view. Fig. 5 is a 4sectional view on line 5-5, Fig. 2.

This invention relates to a new and useful improvement .in buffer beams for locomotives, the object being to construct beam of cast metal and to form the end thereof Vin such manner that it will accommodate the movement of the forward end of the extension of the piston rod when the piston is removed from the cylinder, the ends of the butferbeam being recessed for that purpose, and at the same time pre-v serve the integral solid appearance'of the beam.

A further object of my inventioniis tov arrange the end portions of the rear wall of the buffer beam comparatively closeto the end portions of the front wall, thereby forming strong construction at the ends ofthe beam, it being essential that the ends of said beams be especially strong in order to resist the pressure upon push poles, which, when used, have their rear ends positioned in pockets or seats formed in the ends of the buffer beam.

In the drawings: l indicates the top wall which is provided with openings at suitablev points for the passage of chaplets or anchors for the core.

2 is the back wall, and 3 the front wall, said walls being substantially parallel throughout theV major portion of their length and being reduced in thickness at the ends of the beam, as shown, said rear wall having a shoulder or step 28L whereby it is brought closer to the front wall so as to leave an overhanging iange la, said iiange a compact and comparatively' of chaplets or core supports'.

being a continuationvof the top wall of the beam. A V y By constructing the ends of the beam in themanner just described the full outline -portions 4o'f-the front wall, thereby forming a comp'act Vconstruction of ample strength to withstand the impact offheavy blows upon the ends of the beam, an'dto withstand the strains and stresses vimparted to said beam by the push poles when the same are used. A The rear wall 2, where 'it is inset is provided with an opening 2b in which openingl the extension of the piston rod operates. One side of thisA opening, `the inner, is formed by a vertically disposed web 4 which web has an opening-4al formed therein for the passage of chaplets or anchoring devices for the cores. The transversely disposed web 4 together with the flange Il materially strengthen the end portions of the beam, which end portion is purposely narrow, as hereinbefore described.

5 is'a bottomwall which is dipped at its central portion, as shown in Fig. 2, said bot- -tomfwall opposite the openings 2b in the inset walls 2 being cut away, as shown in Fig. 5. The front wall 'at the ends of the Aings for the reception of the fastening devices. The bottom. wall is provided with openings at different points for the passage and bottom Walls at theends'of the beamv are out awajx7 to provide sn'iiieient clearance for the forward ends ot the piston rod extensions when said extensions are moved forward during the operation oi' detaohing the pistons troni the cylinders.

ldlhat l olaiin is:

1. A bntl'er beain having the end portions of its rear wall inset, a strengthening web between the inset end 'portions oit the rear wall and the Corresponding portions of thel front wall and a top plate overhanging the inset ends of said rear wall.

2. A butler beani having an inset rear wall at its ends, and a top plate overhanging the inset ends of said rear wall.

3. A butler beam having the end portions of its rear wall inset-and integral strengthening webs Connecting the inset portions of the rear wall and the front wall.

el. A butler benin having the end `portions of its rear wall inset, and which inset end portions are provided with openings adapted to receive the forward ends or" the piston rod extensions.

5. A hollow east metal butler beam having the end portions of its rear wall inset,

Lasarte bottoinvplate of which heain is ont away in front of the openings in the inset portions of the rear wall.

6. A buliper beam having frontend rear walls, substantially parallel throughout the middle portion, the rear Wall being inset at the ends of the beam and the top wall overhanging said inset portion.

7. rl`he hereindesoribed butter beam eo1n prisingl an elongated hollow, box-shaped body the ends ot which are closed and the rear and bottoni Walls of which hollow body are ont away at points inside the closed end thereof for the recept-ion of pist-on rod ex' tensions. i v

ln testimoniy whereof l hereunto affix .ny signature in the presence ot two witnesses, this 17th dav ot' July, 1911.

CHARLES T. VESTLAKE.

vVlitnesses: I

HAL- C. BiiLLvILLn7 Lim' lPosr., 

